We are running 3.7.1. We have been since the upgrade became available.
Esmi:
I did as you asked. I used Twenty Twelve and deactivated all plugins.
Directly after the image upload was complete, I typed a name into “Title” and “Alt text.” After that, I clicked “Insert into Post.”
When I did so and hovered over the image, the name I typed in did not appear in a yellow square over the image. I clicked “Edit Image” and when the new screen appeared, the name I had typed into “Title” had disappeared.
Try it yourself and you will see.
Try this as well: upload an image into a post, publish it, start a new post and insert that same image. Click “edit image.” The information you previously typed into “Title” will have disappeared.
This never happened with the previous image upload system.
How can using Twenty Twelve with all plugins deactivated replicate the problem?